Home / 19,275.20-28,869.60-10,030.40

Finding the Fourth Proportional to 19,275.20, 28,869.60 and 10,030.40

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Solution

The fourth proportional to 19,275.20, 28,869.60 and 10,030.40 is: 15,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,275.20 : 28,869.60 = 10,030.40 : x
  2. Step 2: Convert to fraction form
    19,275.20/28,869.60 = 10,030.40/x
  3. Step 3: Cross multiply
    19,275.20x = 28,869.60 × 10,030.40
  4. Step 4: Simplify right side
    19,275.20x = 289,573,635.84
  5. Step 5: Solve for x
    x = 289,573,635.84/19,275.20
  6. Step 6: Final answer
    x = 15,023.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.